XPP Format

XPP (a “script app bundle”) is a bundle structure that XXTouch can parse, display, and execute, presented to users as a single file. In fact, this “file” is a directory with the .xpp extension. Its structure is as follows:

File	Description
Info.lua	Structured metadata storing the bundle configuration. XXTouch relies on this to recognize XPP and related files.
Executable scripts	Each bundle must contain at least one executable script (.xxt, .lua).
Interface config	Optional. XUI configs (.xui, .xuic) that provide a settings UI.
Resources	Optional. Assets required by the scripts, such as images, icons, audio, localized strings, configs, and other data. Many resources can be localized while others are shared.

What is a Bundle?

A bundle is a directory with a specific structure and extension that groups related resources (executables, localized strings, images, etc.) into a single conceptual unit. Bundles behave like files to reduce the risk of accidental modification or loss of internal files, and simplify resource organization.